Are you at least 18 years old?
Elevate your build with the ultimate tactical duty upper configured specifically for southpaw shooters. The PRO2A LEFT HAND 14.5" 5.56 NATO Non-Reciprocating (NR) Side Charging Upper combines standard-setting mid-length gas dynamics with advanced modern ergonomics. Built with a premium Melonite-treated 4150 CMV barrel housed in a true left-ejecting side-charging receiver system, this premium 100% American-made assembly delivers ultra-smooth operation, rapid manual manipulation, and complete debris protection for an uncompromised left-handed shooting experience.
| Upper Receiver | Gibbz Arms LEFT HANDED G4 Non Reciprocating Side Charging Billet Aluminum Receiver with Gen 2 Handle, M4 Feed Ramps, Type III Hardcoat Anodized Blac |
|---|---|
| Barrel Length & Steel | 14.5 Inch Profile, 4150 Chrome Moly Vanadium Steel, Government/Medium Contour, Melonite Treated |
| Caliber | 5.56x45mm NATO (Fully accepts .223 Remington ammunition) |
| Twist Rate | 1:7 Twist (Precision Button Rifled) |
| Gas Operating Block | Mid-Length System, Low-Profile Gas Block Machined from 4140 Steel, Stainless Steel Gas Tube |
| Muzzle Device | Standard 1/2x28 TPI A2 Flash Hider and Crush Washer |
| Handguard | 12 Inch Slim Profile Free-Float M-LOK Rail, Full-Length Top Picatinny Rail, Machined from 6061-T6 Aluminum |
| Manufacturing Origin | 100% Made in the USA with Pro2A Tactical Lifetime Factory Warranty |
The PRO2A LEFT HAND 14.5" 5.56 NATO Side Charging Melonite Upper directly resolves the most persistent problems facing left-handed rifleman: toxic rear gas face-blowback, awkward malfunctions controls, and excessive cyclic snap on shorter systems. Standard rear-charging right-handed uppers vent localized carbon gas directly into your eyes when running aggressively. Relocating weapon manipulation to a stationary side-charging handle seals the traditional rear port block, redirecting internal gas pressure completely down and away from the shooter. Combined with our true mirrored left-eject port, your visual workspace remains entirely clear and uninterrupted.
Furthermore, selecting a 14.5-inch barrel paired with a mid-length gas operating block strikes the perfect professional middle ground. It minimizes structural length for agile maneuverability in tight quarters while maximizing dwell times to lower internal operating velocity. This gives you a weapon system that shoots flatter, cycles cleaner, and returns to your point-of-aim instantly. Backed completely by Pro2A Tactical's signature Lifetime Factory Warranty and manufactured entirely in the USA, this upper receiver optimizes your AR-15 build into a rugged, high-performance asset tailored perfectly to your natural shooting posture.
| SKU | P2ALNR556GFS1212CAR145-TK-LEFT |
|---|---|
| Barrel Length | 14.5 inch |
| Rifle Caliber | 5.56 NATO |
| Manufacturer | Pro2A Tactical |